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      01-21-2022, 09:33 PM   #1
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V10 MHD Map Discussion

V10 has been released but across some forums there isn't in depth discussion on the performance and the changes in the logs or why. I think the consensus right now is the questioning of the timing dips in the v10 maps and the boost targets at RPMS where it shouldn't be making at a given RPM in the powerband. Shall we discuss and lay out logs. Stage 2+ more in particular.
I dont want to hear "its supposed to be a smoother powerband". Lets just look at the reality instead of what they said was released because the timing pulls are strange.
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      01-21-2022, 10:03 PM   #2
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Just get a custom tune by a competent tuner.
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      01-22-2022, 02:46 AM   #3
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Quote:
Originally Posted by syntax View Post
V10 has been released but across some forums there isn't in depth discussion on the performance and the changes in the logs or why. I think the consensus right now is the questioning of the timing dips in the v10 maps and the boost targets at RPMS where it shouldn't be making at a given RPM in the powerband. Shall we discuss and lay out logs. Stage 2+ more in particular.
I dont want to hear "its supposed to be a smoother powerband". Lets just look at the reality instead of what they said was released because the timing pulls are strange.
OTS maps are never gonna be as good as a custom tune.

If you want to stick to OTS maps, Just try v10 log it and compare with earlier versions to see which one runs better on your car.
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      01-22-2022, 01:10 PM   #4
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Quote:
Originally Posted by syntax View Post
V10 has been released but across some forums there isn't in depth discussion on the performance and the changes in the logs or why. I think the consensus right now is the questioning of the timing dips in the v10 maps and the boost targets at RPMS where it shouldn't be making at a given RPM in the powerband. Shall we discuss and lay out logs. Stage 2+ more in particular.
I dont want to hear "its supposed to be a smoother powerband". Lets just look at the reality instead of what they said was released because the timing pulls are strange.
You could always message Ken at wedge performance if you have specific questions. I believe he worked on v10 for MHD.
V7 has always been my favourite. Currently trying V10 for fun.
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      01-23-2022, 11:17 AM   #5
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Kens not responded on some forums and messages.
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      01-23-2022, 11:18 AM   #6
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Originally Posted by Bimmer_Bro View Post
You could always message Ken at wedge performance if you have specific questions. I believe he worked on v10 for MHD.
V7 has always been my favourite. Currently trying V10 for fun.
What do you think in raw feel with v9 vs 10
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      01-23-2022, 11:29 AM   #7
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Quote:
Originally Posted by syntax View Post
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Originally Posted by Bimmer_Bro View Post
You could always message Ken at wedge performance if you have specific questions. I believe he worked on v10 for MHD.
V7 has always been my favourite. Currently trying V10 for fun.
What do you think in raw feel with v9 vs 10
I haven't done any logs but first impressions is 10 feels like a slightly refined v9. I really haven't driven the car enough on 10 to fully decide how I like it. They have made some changes with how it shifts if you have XHP too. They feel slightly faster or firmer.

I drove on V7 for a year or so. Then drove v9 for almost a year. When i went back to V7 I loved it so much. Just seems way more consistent and I love the boost curve better.
I will be very surprised if I like V10 more than 7.
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      01-23-2022, 07:53 PM   #8
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If you want the best OTS map just run the V5 E40
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      01-24-2022, 01:49 AM   #9
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It looks like V10 seems to pushing HPFP more aggressively, drops to around 1800psi, although I think v7 did as well.

On my custom tune always above 2000psi. Once you go custom, there's no going back.
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      01-24-2022, 10:00 AM   #10
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Here are a couple logs of v10 Stage 2 93oct and a VirtualDyno comparison of v9 vs. v10 with the same car and mods ('09 6MT). Keep in mind the v10 log has about 20F colder IATs, and also remember the VirtualDyno readout is a rough comparison at best but I think shows some useful data for comparison purposes.

I would recommend just trying it yourself and seeing how it works out. I don't have any severe timing drops as others have mentioned at all.

https://datazap.me/u/tej98/mhd-v10-s...=0&data=3-4-21
https://datazap.me/u/tej98/mhd-v10-s...og=0&data=3-21
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      01-24-2022, 11:51 AM   #11
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Quote:
Originally Posted by tej98 View Post
Here are a couple logs of v10 Stage 2 93oct and a VirtualDyno comparison of v9 vs. v10 with the same car and mods ('09 6MT). Keep in mind the v10 log has about 20F colder IATs, and also remember the VirtualDyno readout is a rough comparison at best but I think shows some useful data for comparison purposes.

I would recommend just trying it yourself and seeing how it works out. I don't have any severe timing drops as others have mentioned at all.

https://datazap.me/u/tej98/mhd-v10-s...38;data=3-4-21
https://datazap.me/u/tej98/mhd-v10-s...&data=3-21
Thanks for this but there is no way there is a 44hp increase from v9 to v10. The lower IAT would help a bit but not 44 hp. I understand this is a rough virtual dyno but I think the V9 one needs the be run again. Just my two cents.

Edit* would be cool to see V7 on there too

I also spoke to Wedge Performance. They claimed the HP for v10 2+ 93 fbo map is around 400-420 hp at the Crank.
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      01-24-2022, 12:27 PM   #12
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Quote:
Originally Posted by Bimmer_Bro View Post
Thanks for this but there is no way there is a 44hp increase from v9 to v10. The lower IAT would help a bit but not 44 hp. I understand this is a rough virtual dyno but I think the V9 one needs the be run again. Just my two cents.

Edit* would be cool to see V7 on there too

I also spoke to Wedge Performance. They claimed the HP for v10 2+ 93 fbo map is around 400-420 hp at the Crank.
Was about to say the same, the Virtual Dyno chart posted above is way too optimistic,

This is why I don't use Virtual Dyno,

I don't have a clue how to set it up or use it properly. For a proper comparison conditions have to be very similar on a same road ideally.
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      01-24-2022, 12:57 PM   #13
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Quote:
Originally Posted by Saif2018 View Post
OTS maps are never gonna be as good as a custom tune.

If you want to stick to OTS maps, Just try v10 log it and compare with earlier versions to see which one runs better on your car.
This right here........that's the only real way to know which tune works better on your car.


OR....just run the V5 E40 Stage 2+ tune.......and put an end to wondering what MHD tune makes the most power
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      01-24-2022, 01:48 PM   #14
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Quote:
Originally Posted by iqraceworks View Post
Quote:
Originally Posted by Saif2018 View Post
OTS maps are never gonna be as good as a custom tune.

If you want to stick to OTS maps, Just try v10 log it and compare with earlier versions to see which one runs better on your car.
This right here........that's the only real way to know which tune works better on your car.


OR....just run the V5 E40 Stage 2+ tune.......and put an end to wondering what MHD tune makes the most power
I would if we had ethanol pumps here
Best we have is 94 oct.
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      01-24-2022, 02:20 PM   #15
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Sorry if it's a dumb question, but is it possible to run V5 E40 with very high octane fuel but no ethanol?
(E40 has an octane rating of about 98)
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      01-24-2022, 02:41 PM   #16
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Quote:
Originally Posted by studio54 View Post
Sorry if it's a dumb question, but is it possible to run V5 E40 with very high octane fuel but no ethanol?
(E40 has an octane rating of about 98)
i would say NO
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      01-24-2022, 02:56 PM   #17
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Quote:
Originally Posted by Bimmer_Bro View Post
Thanks for this but there is no way there is a 44hp increase from v9 to v10. The lower IAT would help a bit but not 44 hp. I understand this is a rough virtual dyno but I think the V9 one needs the be run again. Just my two cents.

Edit* would be cool to see V7 on there too

I also spoke to Wedge Performance. They claimed the HP for v10 2+ 93 fbo map is around 400-420 hp at the Crank.
Yeah, I agree with you on the +44hp not being correct. Its probably no where near that, but I think still useful for comparisons. I won't be going back to v9 anytime, the car definitely likes v10 way better
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      01-24-2022, 03:02 PM   #18
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Quote:
Originally Posted by studio54 View Post
Sorry if it's a dumb question, but is it possible to run V5 E40 with very high octane fuel but no ethanol?
(E40 has an octane rating of about 98)
No....it's not just about octane rating, Stoich (air/fuel mixture) for gasoline and ethanol are different. Don't run an ethanol tune with gasoline.
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      01-24-2022, 04:26 PM   #19
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Originally Posted by iqraceworks View Post
No....it's not just about octane rating, Stoich (air/fuel mixture) for gasoline and ethanol are different. Don't run an ethanol tune with gasoline.
Yep of course, it was just out of curiousity, because AFR targets of V5 E40 (12.2) seems relatively close with typical octane 100 race gas AFR targets for example, that's why I wondered.
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      01-24-2022, 04:45 PM   #20
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Quote:
Originally Posted by tej98 View Post
Quote:
Originally Posted by Bimmer_Bro View Post
Thanks for this but there is no way there is a 44hp increase from v9 to v10. The lower IAT would help a bit but not 44 hp. I understand this is a rough virtual dyno but I think the V9 one needs the be run again. Just my two cents.

Edit* would be cool to see V7 on there too

I also spoke to Wedge Performance. They claimed the HP for v10 2+ 93 fbo map is around 400-420 hp at the Crank.
Yeah, I agree with you on the +44hp not being correct. Its probably no where near that, but I think still useful for comparisons. I won't be going back to v9 anytime, the car definitely likes v10 way better
Glad you are liking 10 so far. It's true each car seems to have a favourite. Mine was a little inconsistent on 9 and for some reason the idle made my car vibrate. Looking forward to driving more on 10 before I decide .
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      01-24-2022, 08:38 PM   #21
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Quote:
Originally Posted by studio54 View Post
Yep of course, it was just out of curiousity, because AFR targets of V5 E40 (12.2) seems relatively close with typical octane 100 race gas AFR targets for example, that's why I wondered.
MHD doesn't show it quite right, it multiplies lambda by 14.68 no matter the ethanol content. Lambda 1.00 can be 14.7 for pure gasoline, all the way down to 9.75 for E85. When MHD shows 12.2AFR on e40, for example, it's actually more like 10.3. This would probably pretty much max out fuel trims, run horribly, and throw all sorts of codes
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      01-25-2022, 12:21 AM   #22
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Quote:
Originally Posted by ab987 View Post
MHD doesn't show it quite right, it multiplies lambda by 14.68 no matter the ethanol content. Lambda 1.00 can be 14.7 for pure gasoline, all the way down to 9.75 for E85. When MHD shows 12.2AFR on e40, for example, it's actually more like 10.3. This would probably pretty much max out fuel trims, run horribly, and throw all sorts of codes
Yes thanks, but I am talking about AFR targets in the V5 40 BIN. (See screenshot)

No matters if you run ethanol or race fuel, it will not change the targets.

Those targets looks close to what 100 octane race gas targets could be.
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